‘Izombie’ returns for final season

Everybody’s favorite brain-eating sleuth returns for a fifth and final season. For the uninitiated, “iZombie” (9 p.m., CW, TV-14) stars Rose McIver as Liv, a former medical student who becomes the victim of a zombie attack and takes a job at a local police morgue to slake her thirst for human brains. Apparently, the occasional nibble keeps her “normal” enough to function without being reduced to a dim, shuffling, undead cliche.

But her cerebral snacks infect her with traits of the deceased, offering Liv insights into recent crime victims. Weekly procedurals have been built on far more contrived plots.

Adapted from a comic book, like most of the shows on the CW schedule, “iZombie” harkens back to the wise-cracking patter of old WB and UPN shows including “Veronica Mars” and “Buffy.”

› Anxious to see how the new “Twilight Zone” reboot was progressing, I checked out the episode “Six Degrees of Freedom,” streaming today to CBS All Access subscribers.

A space crew (DeWanda Wise, Jessica Williams, Jefferson White, Lucinda Dryzek and Jonathan Whitesell) preparing for the first months-long flight to Mars confronts a horrific choice even before blasting off.

The extended voyage presents the team with any number of psychological and emotional hardships. To say much more would spoil things. But it’s not giving too much away to reveal that this series still asks viewers to sit through some very slow burns.

In all but one season, classic “Zone” offered half-hour episodes that remain memorable after more than 50 years. This one runs roughly one hour. And seems like three.

› Speaking of overlong reboots of TV series, Sarah Jessica Parker, Kim Cattrall, Kristin Davis and Cynthia Nixon star in the 2008 movie adaptation of “Sex and the City” (8 p.m., E).

› Contestants toil under deadline to create a free wardrobe for a celebrity on “Project Runway” (9 p.m., Bravo, TV-14).

In depicting pressure-cooker conditions and the hopes that unpaid work eventually results in valuable media “exposure,” does “Runway” celebrate artists or echo the cyber-serfdom reality of intern and freelance life in creative professions?

OTHER HIGHLIGHTS

› Vanessa Lachey and Nick Lachey host “Miss USA 2019” (8 p.m., Fox, TV-14).

› A firefighter needs medical care on crossover episodes of “Grey’s Anatomy” (8 p.m., ABC, TV-14) and “Station 19” (9 p.m., ABC, TV-14).

› “Murder Chose Me” (9 p.m., ID, TV-14) returns for a third season.

Contact Kevin McDonough at kevin .tvguy@gmail.com.